	var list1=document.getElementById("list1");
	function show1(){
		list1.style.display="block";
		// link.style.background="skyblue";
	}
	function hide1(){
		list1.style.display="none";
	}

	var list2=document.getElementById("list2");
	function show2(){
		list2.style.display="block";
		// link.style.background="skyblue";
	}
	function hide2(){
		list2.style.display="none";
	}

	var list3=document.getElementById("list3");
	function show3(){
		list3.style.display="block";
		// link.style.background="skyblue";
	}
	function hide3(){
		list3.style.display="none";
	}
